Bad service

I went to pick&pay to buy breakfast and only to find that they putted a wrong price of R6,00 instead of R24.95 the cashier called a supervisor that gave me an attitude saying if I don't want I must leave it and I then asked the manager Ezelia and I asked about the consumer protection act the price you see the price you pay she also said it was a wrong price so I must pay what it on the till she called another manager called Alex who gave me an attitude like the supervisor and the price you see Is the price you pay rule doesn't work in pick &amp